Guardog is a simple but powerful intrusion dectection system (IDS) that works by inspecting messages from log files, network packets, and other sources. It uses Perl regular expressions to check for any bad messages.

hwloc provides command line tools and a C API to obtain the hierarchical map of key computing elements, such as: NUMA memory nodes, shared caches, processor sockets, processor cores, and processor "threads". hwloc also gathers various attributes such as cache and memory information, and is portable across a variety of different operating systems and platforms. hwloc primarily aims at helping high-performance computing (HPC) applications, but is also applicable to any project seeking to exploit code and/or data locality on modern computing platforms.

Graudit is a simple script and signature sets that allows you to find potential security flaws in source code using the GNU utility, grep. It's comparable to other static analysis applications like RATS, SWAAT, and flaw-finder while keeping the technical requirements to a minimum and being very flexible.

jsCheck is a PHP class that lets PHP scripts check if the user has JavaScript activated. This can be done in two different ways. The first is to try to set a cookie with JavaScript, and then to check for that specific cookie with PHP. The other method is to use a form and try to submit that form with JavaScript before the page has loaded, after which PHP can detect whether the $_POST variable was posted back.